Hybrid tea rose plane Carbane

ABSTRACT

A vigorous rose plant of the hybrid tea class, a sport from a rose plant entitled &#34;Duchess&#34; provides abundant long-lasting vibrant reddish-pink flowers which substantially maintain their true color from flower opening through petal drop on a continuous basis when grown in a greenhouse.

BACKGROUND AND SUMMARY OF THE INVENTION

The present invention relates to a new and distinct variety of hybridtea rose plant. The object of the present invention is to provide a roseplant of the hybrid tea class which is capable of freely yieldingquality-cut flowers under greenhouse conditions.

The primary features of this new variety which connotates itsdistinctive advance over previously existing types is its ability toproduce an abundance of flowers having a vibrant reddish-pink colorwhich remain true after being cut from when they first open throughpetal drop from a plant which will continuously yield cut flowers undergreenhouse conditions.

The variety of rose plant of the present invention was found in acommercial greenhouse at Carlton, Ore. in 1987 as a very distinctivecolor sport from a plant entitled "Duchess," U.S. Plant Pat. No. 4,241.

Modern Roses 9 at page 81 lists "Duchess" as a hybrid tea, color classmedium pink. Carbane is a spontaneous mutation and differs from themother plant only in the color of blooms produced, Carbane having a muchdarker, almost red, bloom.

Asexual reproduction of this new variety in Wasco, Calif., by means ofbudding, shows that its unique characteristics come true to form and isestablishes and transmitted through succeeding propagations throughbudding.

BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings typical specimens of the vegetative growthand flowers of the new variety are shown in different stages ofdevelopment and are depicted in color as nearly true as is reasonablypossible to make in color illustrations of this character.

FIG. 1 depicts parts detached from the plant including, progressively,in the top row, flower stems (in side view) having, from left to right,petals removed, a flower stem and receptacle having petals and stamensremoved, a receptacle split in cross section, two petals showing bottom(top) and top (bottom) surfaces, a flower stem and flower stem andflower in half-open stage. The bottom row depicts the bottom view of afive-leaflet leaf, the top view of a five-leaflet leaf, a face view of afully opened flower, and a portion of a detached stem with foliageremoved to depict thorns and stem coloration.

FIG. 2 shows a bouquet of flowers of Carbane in various stages ofopening.

FIG. 3 shows the plant on the left and the "Duchess" parent on theright.

DETAILED DESCRIPTION OF THE DISCLOSURE

The following description was made during November 1989 of rose plantsof the new and distinct variety growing in a greenhouse at Carlton, Ore.Color designations are to The Royal Horticultural Society Colour Chart.

FLOWER

Flowers borne: Singly on strong, long stems.

Quantity of bloom: Abundant in greenhouse.

Continuity: Continuous in greenhouse.

Fragrance: Strong; spicy.

Bud:

Peduncle.--Long; heavy; erect; medium green; almost smooth; few hairs;yellow.

Before calyx breaks:

Size.--Large.

Form.--Long pointed; with foliaceous appendages on the surface of thebud extending beyond the tip of the bud equal to one-fourth of itslength.

As calyx breaks:

Color.--53-A.

As first petal opens:

Size.--Large.

Form.--Long pointed.

Color.--Outside: Fan 1 53-D. Inside: Fan 1 53-B.

Opening: It opens up well.

Bloom:

Size when fully open.--Large, 5" to 7".

Petalage.--Very double; from 28 to 34 petals; arranged regularly.

Form.--Very centered at first becoming high centered; petals at firstbeing tightly rolled inward; becoming later at maturity loosely rolledoutward.

Petals: Medium thick; with inside velvety; outside satiny.

Shape.--Outer: obvate with flat base. Intermediate: obvate; scallopedwith round apex with single tooth. Inner: obvate; scalloped with roundapex with single tooth.

Color.--Color of newly opened flowers: Outer petal: Outside surface: Fan2 58-B. Inside surface: Fan 1 46-C. Intermediate petal: Outside surface:Fan 2 58-C. Inside surface: Fan 1 46-D. Inner petal: Outside surface:Fan 2 58-B. Inside surface: Fan 1 45-D. Color of flower three days afteropening: Outer petal: Outside surface: Fan 2 57-C. Inside surface: Fan 253-D. Inner petal: Outside surface: Fan 2 64-C. Inside surface: Fan 253-C.

General Color Effect:

Newly open flower.--A vibrant solid reddish-pink color without anyvariance over the entire flower.

Flowers three days open.--Color becomes a little darker in the centerwith a slight lightening toward the outside of the petals.

Behavior: Petals drop off cleanly.

Flower longevity: Cut flowers grown in greenhouse keep at livingroomtemperature 8 days during November.

REPRODUCTIVE ORGANS

Stamens: Many; arranged irregularly about pistils.

Filaments.--Many; most with anthers; medium length.

Color.--Yellow group 4-C.

Anthers.--Open at various times; medium length. Color: yellow group 1-C.Occasionally an anther fused with a petaloid.

Pollen.--Moderate; lemon-yellow.

Pistils.--Many.

Styles.--Uneven; medium length; medium weight; loosely bunched.

Stigma.--Yellow.

Ovaries.--Some protruding from receptacle.

Hips.--Medium length globular pear-shaped; very smooth; walls thick;fleshy; russet.

Sepals.--Falling soon; moderately long; spear-shaped, recurved.

Seeds.--Medium number; large.

PLANT

Foliage:

Leaves.--Compound of three, five or seven leaflets; moderately abundant;large; leathery; average five-leaflet leaf is 7 inches long and 5 to 6inches wide.

Leaflets.--Ovate with acute base obtuse margin simply serratentate.

Color.--Mature upper surface: Yellow-green Group 147-A. Mature undersurface: Greyed-green group 191-A. Young upper surface: Green Group137-A. Young under surface: Greyed-green Group 191-A.

Rachis.--Medium weight. Upper side: Grooved. Under side: Sparselythorny.

Stipules.--Moderately long; narrow; moderately short points; turning outan angle of less than 90°.

Disease.--Resistance comparable to the average variety growing under thesame conditions.

Growth:

Habit.--Upright.

Growth.--Moderately vigorous in the greenhouse; in outdoor culture thebush averages 48 inches in height and 36 inches in width.

Canes.--Heavy.

Main stems.--Dull. Color: Green Group 137-B. Prickles: Several. Color:Greyed-orange Group 174-A. Hairs: None.

Branches.--Bright. Color: Green Group 137-C. Prickles: Several. Color:Greyed-green Group 195-A. Hairs: None.

New shoots.--Bright. Color: Green Group 137-D. Prickles: Few. Color:Yellow-green Group 147-C. Hairs: None.

What is claimed is:
 1. A new and distinct variety of rose plant of thehydrid tea class found as a sport of a rose plant entitled "Duchess"characterized by its vibrant reddish-pink color which is substantiallymaintained from flower opening through petal drop, and its ability toyield flowers on a continuous basis when grown in a greenhouse,substantially as shown and described.